Samsung AE050RXYDEG Installation Manual page 27

Calculating the pre-pressure of the expansion vessel
f The pre-pressure(Pg) to be set depends on the maximum installation height difference(H) and is calculated as below :
f
Pg=(H/10+0 . 3 ) bar
Unit resistance and PHE resistance by glycol concentrate
The unit is composed of water pipes and PHE basically .
To ensure correct operation and predict the expected performance, Flow and Resistance table can be used and Flow and
Resistance characteristic is dependent on Glycol concentration .
70
60
50
40
30
20
10
0
5 10 15
Changing Glycol concentration can cause the pressure drop of the system and it can leads to make flow rate rather slow . Just
in case performance degration, installer shall be careful of flow rate changes .
AE050RXYDEG
20 25 30 35 40
LPM
ENGLISH-27
WATER
PG 10%
PG 20%
PG 30%
PG 40%
PG 45%
45 50